文章基本信息

标题：Uso da entropia e da análise de agrupamento na avaliação da disponibilidade potencial de recursos hídricos do Nordeste do Brasil
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作者：Roni Valter de Souza Guedes ; Solange Salviano Sousa ; Francisco Salviano Sousa 等
期刊名称：Revista Ambiente & Água
印刷版ISSN：1980-993X
出版年度：2010
卷号：5
期号：2
页码：175-187
DOI：10.4136/ambi-agua.146
出版社：Instituto de Pesquisas Ambientais em Bacias Hidrográficas
摘要：The aim of this study was to define, based on Shannon entropy theory and on cluster analysis and metrics to represent the randomness of the intensity and occurrence of monthly rainfall and using these metrics to evaluate the potential availability of water resources (PAWR) in northeastern Brazil.Here the entropy is expressed in the context of probability of occurrence of the "intensity of hydrological variables," i.e, within the structure of Entropy Intensity.The criterion to perform the sampling of rainfall data was the period of data collection.Rain gauges with less than 25 years of observations were left out of this study.Data of total monthly precipitation from 874 rain gauges in the Northeast of Brazil were analyzed.This study showed the perfect adaptation of the methodology applied for the studied area.The results showed a perfect configuration with the Köppen climatic types and the weather systems operating in each area.
关键词：Teoria da informacao de Shannon; precipitacao; k-media.